TY - RPRT TI - A private practice model for teaching and research activities. AU - L P Levitt AU - P J Barbour AU - J E Castaldo AU - A D Rae-Grant PY - 1991 DO - 10.1016/0022-510x(91)90292-f UR - https://pubmed.ncbi.nlm.nih.gov/1865224/ ID - 1865224 ER -